Various kinds of factors including socioeconomic and endemic condition, life and labor environment have effects on disease appearance, but weather condition of relevant area is also important.
Specially, the occurrence of climate-sensitive diseases including respiratory and digestive disease has clear seasonal character.
In our country that holds man dearest, the party's line of preventive medicine has being thoroughly achieved by strengthening the research to clear the relation between disease occurrence and weather condition scientifically and the realization of medical weather forecast.
In the past, the climate hygiene seminar in Pyongyang medical college of
The daily average case numbers by season of the gastroenteritis, enterocolitis and colitis were as the highest as 6.57, 2.91 and 0.53 in summer, and the lowest as 1.16, 0.41 and 0.36 in winter.
The daily average case numbers by month of the gastroenteritis was the highest from June to September and the lowest from December and January, the numbers of enterocolitis was the highest from July to September and the lowest from November and January, and the numbers of colitis was the highest from June to August and the lowest from November and March.
The gastroenteritis had the positive middle correlation to temperature, the negative middle correlation to air pressure, the positive low correlation to humidity, clouds and precipitation, but it was not correlative to wind.
Also it had the negative low correlation to the percentage of sunshine, but there was no significance as P value is more than 0.5.
The enterocolitis had the negative middle correlation to air pressure, the positive low correlation to temperature, humidity, clouds and precipitation and had the negative low correlation to the percentage of sunshine.
The colitis had the positive middle correlation to temperature, the positive low correlation to humidity and clouds, and the negative low correlation to air pressure and the percentage of sunshine.
The case rate of gastroenteritis was the highest at a temperature of 20℃ and over, humidity of 80% and over, clouds of 71% and over, air pressure of 1010mb and less, precipitation of 61-80mm.
And the case rate of enterocolitis was the highest at a temperature of 20℃ and over, humidity of 91-95%, clouds of 41-50%, air pressure of 1 010mb and less, precipitation of 101mm and over, the percentage of sunshine of 11-20%.
Also, the case rate of colitis was the highest at temperature of 15℃ and over, humidity of 70% and over, clouds of 80% and over, air pressure of 1 000mb and less, the percentage of sunshine of 20% and less.
In future, we'll clarify the relation to the change of daily weather, to the weather of previous day as well as the day, which more raise the scientific accuracy of medical weather forecast on the climate-sensitive diseases.
